Police say they cannot rule out foul play over the disappearance of an overseas student a week ago.

Student Tae Won Chung stabbed his teacher after being goaded about his fear of North Korea and returning home to military training, a court hears.

A 17-year-old Auckland student will appeal a jail term handed down today for stabbing his teacher in the back in class.

A woman on trial for assaulting her son told her husband she had been "naughty, very naughty".

A three-year-old who wet his bed was allegedly beaten so badly by his mother he was left with brain injuries, the High Court at Auckland hears.